It occurs every day in many factories
as products are assembled with threaded fasteners. At some sites it is
so common that for the more troublesome applications, special repair
screws of the same pitch, but one size larger in diameter, are stocked
for replacement purposes. The rework and repair costs can be huge, but
are often accepted as standard operating procedure. Now, there is a fastener
designed to prevent Cross-threading and its associated costs - the TRU-START™ Fastener. The unique TRU-START™ point design not only prevents cross-threading
in tapped holes, but also locates and aligns the fastener when entering
a tapped hole. The absence of threads along one side of the fastener
prevents the fastener from engaging the nut threads while the fastener
is at an angle. The orientation and angle of the point were developed
in relationship to the fastener's thread helix angle.
All these features add up to cost savings, because cross-threading, even in a small percentage of assemblies, can be very expensive. Cross-threading can damage or destroy an assembly causing unnecessary down time, expensive repairs, and/or the complete loss of an expensive component. An even higher cost can result from cross-threaded joints that are not detected at assembly, because cross-threading is not always readily apparent during assembly. Often the joint appears satisfactory and offers little evidence that the joint formed is incapable of withstanding its intended design loads. TRU-START™ fasteners were developed in response to end-user demands to reduce costs by preventing cross-threaded joints.
TRU-START™ fasteners can be supplied with grade strength and finish to suit.
